New Delhi, Jan. 28 -- The national capital witnessed a slight improvement in air quality on Wednesday morning, with the overall Air Quality Index (AQI) recorded at 273 at around 7 am, keeping it in the 'poor' category, according to data from the Central Pollution Control Board (CPCB).

The air quality improved slightly from Tuesday, with the AQI at 294. However, large parts of the city remained enveloped in smog, and the overall air quality continues to be in the 'poor' category.

According to data shared by the CPCB, the AQI near Anand Vihar was recorded at 280, placing it in the "poor" category. In the Patpadganj area, the AQI was 304, placing it in the "very poor" category.

Several key monitoring stations across the city reported AQI ...